Visual feedback when deleting pages

Hi guys,

first of all: thanks for your awesome work.

Situation:
Deleting one or multiple pages in admin plugin. Deleting sometimes isn't happening instantly on clicking the "x" icon in the pages list. It takes some time (at least in my development environment).

Improvement:
While page is being deleted, the browser tab is reloading. I find it additionally helpful if the system gave some visual feedback while processing the deletion. (spinner, message, etc.).

Cheers